TW201304589A - A planar slot antenna with multi-band operation for WiMAX system - Google Patents
A planar slot antenna with multi-band operation for WiMAX system Download PDFInfo
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- TW201304589A TW201304589A TW100123590A TW100123590A TW201304589A TW 201304589 A TW201304589 A TW 201304589A TW 100123590 A TW100123590 A TW 100123590A TW 100123590 A TW100123590 A TW 100123590A TW 201304589 A TW201304589 A TW 201304589A
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Abstract
Description
本發明係涉及將天線輻射槽孔結構之設計，其正面T型微帶線，在路徑末端處以T型設計可有效調整中頻阻抗匹配，C型輻射槽孔激發低頻及高頻模態，L型輻射槽孔激發中頻模態，而矩型槽縫可控制低頻模態之阻抗匹配，以上設計符合WiMAX系統所需要之頻寬要求，且在其操作頻率範圍均具有良好的等方向性輻射場型與平穩的峰值增益特性。The invention relates to the design of the antenna radiation slot structure, the front T-shaped microstrip line, the T-shaped design at the end of the path can effectively adjust the intermediate frequency impedance matching, the C-type radiation slot stimulates the low frequency and high frequency mode, the L-type radiation The slot excites the IF mode, while the rectangular slot controls the impedance matching of the low frequency mode. The above design meets the bandwidth requirements of the WiMAX system and has a good isotropic radiation pattern in its operating frequency range. With smooth peak gain characteristics.
在任何無線通訊系統中，天線佔有非常重要的地位，而在近十幾年來天線發展中最快速的應屬於平面天線(planar antenna)，其因具備低姿勢(low profile)、體積小(small size)、質量輕(light weight)、低成本(low cost)、製作容易及可信度高的特性，同時可附著於任何物體之表面上，使得平面天線被大量應用，而應用在WiMAX系統的天線雖已有多項設計方法被提出但大多僅限於單頻操作且其體積較大，對於小型化多頻或寬頻平面天線之研發成果則付之闕如，在行動裝置越來越小的趨勢下，個人通訊產品的要求越來越嚴苛，輕薄短小、價廉物美已經為設計上的基本要求，要在有限空間設計出適合的天線，天線本身的形式與尺寸大小便成為第一要件，另外，天線的操作頻寬(Bandwidth)、增益(Gain)、效率(Efficiency)與輻射場型(Radiation Pattern)等，都是可深入研究的方向。In any wireless communication system, the antenna occupies a very important position, and the fastest antenna development in the past decade or more should belong to the planar antenna, which has a low profile and a small size. ), light weight, low cost, ease of fabrication, and high reliability, while attaching to the surface of any object, making planar antennas widely used, and antennas used in WiMAX systems Although many design methods have been proposed, but most of them are limited to single-frequency operation and their volume is large, the research and development results of miniaturized multi-frequency or wide-band planar antennas are paid for, and in the trend of smaller and smaller mobile devices, individuals The requirements of communication products are becoming more and more stringent. Light, thin, short, and inexpensive are the basic requirements of design. It is necessary to design a suitable antenna in a limited space. The form and size of the antenna itself become the first requirement. In addition, the antenna Bandwidth, gain (Gain), efficiency (Efficiency) and Radiation Pattern (Radiation Pattern) are all in-depth research directions.
我們提出一種WiMAX系統用平面多頻槽孔天線，本天線藉由嵌入槽孔方式可激發2.6/3.5/5.5 GHz三個WiMAX系統用操作模態，其頻寬分別為450/534/1073 MHz，天線峰值增益與輻射效率分別為2.0/3.2/6.6 dBi和87/90/95%，且在XY-plane具有近似等方向性的輻射場型。We propose a planar multi-frequency slot antenna for WiMAX systems. This antenna can be used to excite three WiMAX system operating modes of 2.6/3.5/5.5 GHz by embedding slots, with a bandwidth of 450/534/1073 MHz. The antenna peak gain and radiation efficiency are 2.0/3.2/6.6 dBi and 87/90/95%, respectively, and the XY-plane has an approximately isotropic radiation pattern.
第1圖是本發明天線之一實施例，包括：一介質基板10，該介質基板設有兩金屬表面，該金屬表面包含：一接地金屬面11，一訊號T型饋入微帶金屬線12，該T型饋入微帶金屬線包含：一訊號T型饋入之起始端121，一訊號T型饋入之末端122，一C型輻射槽孔13，該C型槽孔表面包含：一C型輻射槽孔之起始端131，一C型輻射槽孔之中間臂132，一C型輻射槽孔之末端133，一L型輻射槽孔14，該L型槽孔表面包含：一L型輻射槽孔之起始端141，一L型輻射槽孔之末端142及一矩型輻射槽縫15。1 is an embodiment of an antenna of the present invention, comprising: a dielectric substrate 10, the dielectric substrate is provided with two metal surfaces, the metal surface comprises: a grounded metal surface 11, a signal T-type feeding microstrip metal wire 12, The T-type feeding microstrip metal wire comprises: a signal T-type feeding start end 121, a signal T-type feeding end 122, a C-type radiation slot 13, the C-shaped slot surface comprises: a C-type The starting end 131 of the radiating slot, the middle arm 132 of a C-type radiating slot, the end 133 of a C-type radiating slot, and an L-shaped radiating slot 14, the surface of the L-shaped slot includes: an L-shaped radiating slot The starting end 141 of the hole, the end 142 of an L-shaped radiating slot and a rectangular radiating slot 15.
第2圖是本發明天線之一實施例之返回損失實驗量測結果圖，縱軸表示返回損失(dB)，橫軸表示操作頻率(GHz)；如第2圖所示，由所得的測試結果，在返回損失值大於等於10 dB為標準，其頻寬分別為450/534/1073 MHz，可符合WiMAX 2.6/3.5/5.5 GHz系統之頻寬要求，表示本發明天線之實施例在各頻段上具有良好的操作特性。Figure 2 is a graph showing the return loss experimental measurement results of an embodiment of the antenna of the present invention, wherein the vertical axis represents the return loss (dB) and the horizontal axis represents the operating frequency (GHz); as shown in Fig. 2, the obtained test result The return loss value is greater than or equal to 10 dB as the standard, and the bandwidth is 450/534/1073 MHz, which can meet the bandwidth requirement of the WiMAX 2.6/3.5/5.5 GHz system, indicating that the embodiment of the antenna of the present invention is in each frequency band. Has good operating characteristics.
第3圖、第4圖與第5圖為本發明天線之一實施例分別於2.6 GHz、3.5 GHz及5.5 GHz之輻射場型量測結果。其中，在X-Y平面均為良好的等方向性輻射場型。3, 4, and 5 are measurement results of radiation field types at 2.6 GHz, 3.5 GHz, and 5.5 GHz, respectively, of an embodiment of the antenna of the present invention. Among them, the X-Y plane is a good isotropic radiation field type.
第6圖、第7圖與第8圖為本發明天線之一實施例分別於低頻、中頻與高頻段之天線峰值增益實驗量測結果，縱軸表示增益值(dBi)，橫軸表示操作頻率(GHz)，由實驗結果得知，本天線之天線增益在三個操作頻段分別為2.0/3.2/6.6 dBi，具有良好之操作特性，亦即，表示本發明天線之實施例可以產生良好的收發效果。6 , 7 and 8 are experimental results of antenna peak gains of the antennas of the present invention in the low frequency, intermediate frequency and high frequency bands respectively, the vertical axis represents the gain value (dBi), and the horizontal axis represents the operation. Frequency (GHz), from the experimental results, the antenna gain of the antenna is 2.0/3.2/6.6 dBi in three operating frequency bands, respectively, and has good operational characteristics, that is, the embodiment of the antenna of the present invention can produce good Send and receive effects.
綜合上述說明，本發明之一種WiMAX系統用平面多頻槽孔天線具有三頻操作及近似等方向性輻射場型之特性；此外，不僅製作簡單、成本低、體積小，證明本發明天線之產業應用價值極高，足以符合發明之範疇。Based on the above description, a planar multi-frequency slot antenna for a WiMAX system of the present invention has the characteristics of three-frequency operation and an approximate isotropic radiation field type; in addition, it is not only simple to manufacture, low in cost, and small in size, and proves the industry of the antenna of the present invention. The application value is extremely high enough to meet the scope of the invention.
在上述說明中所敘述之實施例僅為說明本發明之原理及其功效，而非限制本發明。本發明之權利範圍應如後述之申請專利範圍所列。The embodiments described in the above description are merely illustrative of the principles of the invention and its advantages, and are not intended to limit the invention. The scope of the invention should be as set forth in the appended claims.
10．．．介質基板10. . . Dielectric substrate
11．．．接地金屬面11. . . Grounded metal surface
12．．．訊號T型饋入微帶金屬線12. . . Signal T-type feeding microstrip metal wire
121．．．訊號T型饋入之起始端121. . . The beginning of the signal T-type feed
122．．．訊號T型饋入之末端122. . . Signal T-type feed end
13．．．C型輻射槽孔13. . . C-type radiation slot
131．．．C型輻射槽孔之起始端131. . . The starting end of the C-type radiation slot
132．．．C型輻射槽孔之中間臂132. . . Intermediate arm of C-type radiation slot
133．．．C型輻射槽孔之末端133. . . End of the C-type radiation slot
14．．．L型輻射槽孔14. . . L-shaped radiation slot
141．．．L型輻射槽孔之起始端141. . . The beginning of the L-shaped radiation slot
142．．．L型輻射槽孔之末端142. . . End of L-shaped radiation slot
15．．．矩型輻射槽縫15. . . Rectangular radiation slot
第1圖為本發明之平面多頻槽孔天線之一實施例結構圖。Fig. 1 is a structural view showing an embodiment of a planar multi-frequency slot antenna of the present invention.
第2圖為本發明天線一實施例之實測返回損失量測結果。Figure 2 is a graph showing the measured return loss measurement results for an embodiment of the antenna of the present invention.
第3圖為本發明天線一實施例操作於2.6 GHz、3.5 GHz及5.5 GHz在X-Y平面之輻射場型量測結果。Fig. 3 is a graph showing the measurement results of the radiation field type in the X-Y plane at 2.6 GHz, 3.5 GHz and 5.5 GHz according to an embodiment of the antenna of the present invention.
第4圖為本發明天線一實施例操作於2.6 GHz、3.5 GHz及5.5 GHz在X-Z平面之輻射場型量測結果。Fig. 4 is a graph showing the measurement results of the radiation field type in the X-Z plane at 2.6 GHz, 3.5 GHz and 5.5 GHz according to an embodiment of the antenna of the present invention.
第5圖為本發明天線一實施例操作於2.6 GHz、3.5 GHz及5.5 GHz在Y-Z平面之輻射場型量測結果。。Fig. 5 is a measurement result of radiation field type in the Y-Z plane operating at 2.6 GHz, 3.5 GHz and 5.5 GHz according to an embodiment of the antenna of the present invention. .
第6圖為本發明天線一實施例在低頻段之天線峰值增益量測結果。Figure 6 is a graph showing the measurement results of the antenna peak gain of the antenna in the low frequency band according to an embodiment of the antenna of the present invention.
第7圖為本發明天線一實施例在中頻段之天線峰值增益量測結果。Figure 7 is a graph showing the measurement results of the antenna peak gain of the mid-band in an embodiment of the antenna of the present invention.
第8圖為本發明天線一實施例在高頻段之天線峰值增益量測結果。Figure 8 is a graph showing the measurement results of the antenna peak gain of the antenna in the high frequency band according to an embodiment of the antenna of the present invention.
10．．．介質基板10. . . Dielectric substrate
11．．．接地金屬面11. . . Grounded metal surface
12．．．訊號T型饋入微帶金屬線12. . . Signal T-type feeding microstrip metal wire
121．．．訊號T型饋入之起始端121. . . The beginning of the signal T-type feed
122．．．訊號T型饋入之末端122. . . Signal T-type feed end
13．．．C型輻射槽孔13. . . C-type radiation slot
131．．．C型輻射槽孔之起始端131. . . The starting end of the C-type radiation slot
132．．．C型輻射槽孔之中間臂132. . . Intermediate arm of C-type radiation slot
133．．．C型輻射槽孔之末端133. . . End of the C-type radiation slot
14．．．L型輻射槽孔14. . . L-shaped radiation slot
141．．．L型輻射槽孔之起始端141. . . The beginning of the L-shaped radiation slot
142．．．L型輻射槽孔之末端142. . . End of L-shaped radiation slot
15．．．矩型輻射槽縫15. . . Rectangular radiation slot
Claims (6)
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| Application Number | Priority Date | Filing Date | Title |
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| TW100123590A TW201304589A (en) | 2011-07-05 | 2011-07-05 | A planar slot antenna with multi-band operation for WiMAX system |
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| Application Number | Priority Date | Filing Date | Title |
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| TW100123590A TW201304589A (en) | 2011-07-05 | 2011-07-05 | A planar slot antenna with multi-band operation for WiMAX system |
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| TW201304589A true TW201304589A (en) | 2013-01-16 |
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| TW100123590A TW201304589A (en) | 2011-07-05 | 2011-07-05 | A planar slot antenna with multi-band operation for WiMAX system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI577081B (en) * | 2013-04-24 | 2017-04-01 | 宏碁股份有限公司 | Mobile device |
| CN106910997A (en) * | 2017-02-28 | 2017-06-30 | 电子科技大学 | A kind of multi-band planar printed antenna |
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2011
- 2011-07-05 TW TW100123590A patent/TW201304589A/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI577081B (en) * | 2013-04-24 | 2017-04-01 | 宏碁股份有限公司 | Mobile device |
| CN106910997A (en) * | 2017-02-28 | 2017-06-30 | 电子科技大学 | A kind of multi-band planar printed antenna |
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